Keyboard tray



FIG. 1 is a front, left-side perspective view of a keyboard tray showingour new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a back elevational view thereof;

FIG. 6 is a front elevational view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The ornamental design for a keyboard tray, as shown and described.